Fastener setting machine



Aug. 29, 1933. w. JQDE WITT 1,924,982

FASTENER SETTING MACHINE Filed June 10, 1932 y2 Sheets-Sheet 1 Wyo".

ug. 29, 1933. w 1 DE W|TT 1,924,982

FASTENER SETTING MACHINE Filed June 10, 1952 2 Sheets-Sheet 2 Patented ug. 29, 1933` UNITED STATESv FASTENER SETTING MACHINE William J. De Witt, Auburn, N. Y., assignor to Shoe Form Co., Inc., Auburn, N. Y., a corporation of New York Application une 10, 1932; Serial No. 616,380

20 Claims.

This invention relates to an improvement in a fastener-setting machine and more particularly, as herein illustrated and described, in a machine for setting tubular eyelets or rivets by upsetting 5 and clenching their barrels.

In the manufacture of certain articles, for exf ample, sh e forms, it is essential that certain fasteners be in position in the material to which it is secured, and that other fasteners be freely l movable th i This requirement can be satisfied m he upset fasteners of two lengths, the tubular panels oi one group of fasteners being shorter than the barrels of the other group. For purpose of ease in description the fasteners will be referred to as long and short, it being understood, of course, that these terms are used in the relative sense only and that the diierenoe in length is slight. While this can be done by using two machines suitably adjusted, this obviously requires an increase in investment in machines and retards the operations whether the separate machines are fed by the same `or diiierent operators.

The primary object of this invention is to provide a machine so constructed that it is capable of automatically setting fasteners so that the set fasteners have barrels of two diferet lengths; ymore particularly a machine in which the setting operation produces an. alternate sequence of long and short `lasteners, such operation being entirely automatic and out of control of the operator who operates the machinein the usual way.

Other objects will appear from a consideration of the following description taken in connectionY with the drawings which form a part thereof, and in which llig. 1 is a view in side elevation, partly broken away, of a machine embodying this invention;

Fig. 2 is a front view of the fastener setting tools of the machine;

Fig. 3 is an enlarged view, partly in section, of a portion of the mechanism of the machine, by which its upsetting operation is automatically controlled;

Fig. 4 is a similar view of another portion of such mechanism;

Fig. 5 is an illustration of a portion of a shoe form provided long and short fasteners which may be upset by a machine embodying this invention; and

Fig. 6 is a sectional view taken along the line 6 6 of Fig. 5.

In the manufacture of shoe forms, for example, the ball ilanges 1) thereof are connected by a n crossbrace ll secured at its ends to the ilanges by rivets 12 and 13. The rivet l2 is passed through a loop in the crossbrace and hole in the ilange and of sulicient length to permit the crossbrace to pivot on the rivet barrel. The rivet 13, howeven must be longer, since it not only permits the crossbrace to pivot but also must be reciprocable in a slot 14 in the flange. Hence the barrel 15 of the set rivet l2 need not be as long as the barrel 16 of the rivet i3 and the rivets may be distinguished by the terms short and long respectively.

I Various machines may be adapted to carry orties out this invention but, for the purpose of illus-l tration, I have elected to show va reorganization of the fastener setting machine disclosed in the.LA patent to Gookin No. 1,323,894, dated'Septen'iber 22, 1931. The machine comprises a frame preferably hollow and Aprovided with an over?V hanging arm 21 and a base 22 by which it is secured to a suitable support (not shown). Mounted for reciprocation in the arm 21 is a plunger 23 provided with a fastener-setting tool 24. Projecting from the frame 20 is a horn 25 on which is supported a clenching tool or die 26 whichwcoacts with the tool 24 to set the fasteners inthe well known way.

The plunger 23 is reciprocated by a lever 27 fulcrumed intermediate its length upon a pin 28 carried by bearings29 inthe arm 21. A link 30V connects oneY end of the lever 27 to a wrist pin 31V xed upon and carried by a cam member 32, The member 32 is fixed upon a shaft 33 driveny from any suitable source of power by a pulley 34. Pivotallysupported on ears 35 pro-` jecting from the arm 21 is a. raceway 36 byY which fasteners are presented to the upsetting tools` 24 and 26V. The raceway 36 is oscillatedV by a rock shaft 37 supported in bearings on the arm2l and actuated by a cam roll 38 mountedA onv a lever 39 and in engagement with the cam member 32. Fasteners are supplied to 'the raceway 36 by feeding mechanism of a well known type comprising a hopper 40, a' pulley 41 by which a brush (not shown) inf the hopper is rotated, a pulley 42 on the shaft '33, and a belt 43. A clutch (not shown), mounted upon the shaft 33, is controlled by a rod 44-sothat when the rod is depressed by the operator, the pulley 34 is coupled to the shaft v33 and when the rod is raised by a spring 45 rthe pulley isuncoupled from the shaft. t

The fulcrum pair 28 (see Fig. 2) y is made of two tubular sections and 5l held inabuttng relation by a rod 52 in threaded engagement` The abutting ends ofthe` sections are held against relative rotation by any with the section 50.

suitable means as, for example,v the tongue and groove shown in dotted lines. a cylindrical portion 53 concentric with respect to the rod 52 and a cylindrical portion 54 eccentric with respect to the rod.. The portions 53 are received by the bearings 29 in ,the arm 21` while the portions 54 are received bybearings 55 in the lever 27. The section 51 also has a toothed cylindrical portion 56 with which mesh Each section has I theV teeth of a gear wheel 57 rotatably supported l on an aXle58 secured to a post 59 carried byY chine sets alternately short and long fasteners 0i' lever 27 returns to the Fig. 1 position the pawl the horn 25. Rotatably supported on the aXle 58 is also a ratchet wheel 60 secured to the wheel 57Y by pins 61. As shown in Fig.v 2 the wheel 57 is provided with a flange 62 so that the periphery of the wheel 66 is held out of contact with the Wheel 57. The wheels 57 and 60 thus move freely as a unit about the axle 58 in the space between a shoulder 63 on theaxle and a washer 64 secured by a screw 65 to the end of the axle. The outer faces of the wheels 57 and are provided with integral collars or flanges 66 and 67 respectively. The wheels 57 and 60 are rotated step by step by a pawl 70 carried by the lever 27 and held by a spring 71 in contact with the periphery of the wheel 57.

When the rod e4 is depressed to couple the pulley 34 to the shaft 33 the lever 27 causes the tool 24 to move toward and from the `tool 26 and thus upset a fastener in the work. As the 70 thereon engages and rotates the wheel 60.

' Since the wheel 66 is secured` to the wheel 57,

the' latter is thus actuated to rotate the pin 28 and shift the fulcrum of the lever so that the distance between the tools 2e and 26 is varied.

The teeth ofA the wheel 57 and the section 56 are so spaced that the pin is turned through 180 so that the fulcrum of the lever 27 is raised appreciably. The following actuation of the lever 27 will obviously not bring the tool 24 as near the tool 26 as in the preceding actuation and as a result the tubular barrel of the fastener then set will be longer than that of the fastener just previously set. As the lever 27 returns to the Fig. 1 position, the pin 2B is again rotated through 180 by the operation of the pawl 70 and wheels 60 and 57 so that it resumes the position shown in Fig. 2.

With the arrangement just described the maor when setting the rivets in the form illustrated in Figs. 5 and 6, the rivets 12 and 13. However, by making the necessary changes obvious to any mechanic, the sequence of operationsY can be changed as required to one for setting two short rivets, and two long rivets, or any other sequence desired.

While one embodiment of this invention has been shown and described, I am not limited thereto, since other embodimentsmay be, made without departing from the spirit and scope of this invention as set forth in the following claims.

I claim:

l. A fastener setting machine comprising setting tools arranged to pply upsetting and clenching pressure agains"` fasten rs, and means independent of the material treated for automatically varying distance between said tools when the 'setting operation is performed.

2. A fastener seting machine comprising setting tools arranged to apply upsetting and clenching pressure against the fasteners, means forA moving one of said tools toward and away from the other tool to set a fastener at each operation, and means independent of the inaterialtreated for automatically varying the distance between the toolswhen the setting operation is performed.

3. A fastener setting machine, comprising set-- ting tools arranged to apply upsetting and clenching pressure against the fasteners, means for moving one of said tools toward and away from the other tool to set a fastener at each operation,

and means actuated automatically by said moving means independent of the material-treatedI 4. A fastener setting machine comprising setting tools arranged to apply upsetting and clenching pressure against the fasteners, a lever by which one of said tools is moved toward and away from the other tool to set a fastener at each operation, and means operable automatically independent of the material treated for shifting the fulcruin of said lever to vary the distance between the tools when the setting operation is performed.

5. A fastener setting machine comprising setting tools arranged to apply upsetting and clenching pressure against the fasteners, a lever by which one of said tools is moved toward and away from the other tool to set a fastener at each operation, and means actuated by said lever inde pendent of the material treated for shifting the fulcrumy of said lever to vary the distance between the tools when the setting operation is performed.

6. A fastener setting machine comprising setting tools arranged to apply upsetting and clenching pressure against the fasteners, a lever by which one of said tools is moved toward and away from the other tool to set a fastener at each or ere ation, a pin on which said lever is fulcrumed and means operable utoinatically independent of the material treated for mov pin to shift the fulcrum of said lever to vary l the dist-ance oetween the tools when the setting operation is performed.

7. A fastener setting machine comprising setting tools arranged to apply upsetting and clencln ing pressure against the fasteners, a lever by which one of said tools is moved toward and away from the yother tool to set a fastener at each operation, a pin on which said lever is fulcruined, and means actuated by said lever independent of the material treated for moving said pin to shift the fulcruin of said lever to vary the distance between the tools when the setting operation is pe `formed.

8. A fastener setting machine comprising set ting tools arranged to apply upsetting and clenchingpressure against the fasteners, a lever` by which one of said tools is moved toward and from the other tool to set a fastener at each operation, a pin on which said lever is fulcrumed and having an eccentric cylindrical surface, and means for rotating said pin to shift the fulcrum of said lever to vary the distance between the tools when the setting operation is performed.

9. A fastener setting machine comprising setting tools arranged to apply upsetting and clenching pressure against the fasteners, a lever by which one of said tools is` moved toward and away from the other tool to set a fastener at each operation, a pin on which said lever is fulcruined and having an eccentric cylindrical surface, and means actuated by said lever for rotating said pin to shift the fulcrum of said lever to vary the distance between the tools when the setting op eration is performed.

10. A fastener setting machine comprising setting tools arranged to apply upsetting and clenching pressure against the fasteners, a lever by which one of said 'tools is moved toward and away from the other tool to set a fastener at each operation, a pin on which said lever is fulcrumed, the cylindrical surface of the pin engaged by the lever being eccentric, and means for rotating said pin to shift the fulcrum of said lever to vary the distance between the tools whenv loo ting tools arranged to apply upsetting and clenching pressure against the fasteners, a rever by which one of said tools moved toward and away from the ot?. er tool to set a fastener at each operation, a pin on which lever is fulcrumed, the cylindrical surface of the pin engaged by the lever being ceceni ic, and means actuated by said lever for rotating said pin to shift the fulcrurn of said le' to vary the distance between the tools when the setting operation is performed.

l2. A fastener setting machine comprising a frame, setting tools carried thereby and arrange to apply upsetting and clenching pressure against the fasteners, a lever by which one of said tools is moved toward and away from the other tool to set a fastener at each operation, a pin carried by said frame on which said lever is fulcrumed, mechanism on the fraine for rroving said pin and shifting the fuleruin the lever, and means operable in sequence with the rnoveinent of said tool away from other tool for actuating said mechanism.

13, A fastener setting machine comprising a frame, setting tools y and arranged to apply upsetting a c pressure against the fasteners, a lever which one of said tools is moved toward and away the other tool to set a fastener at each opera i a pin carried by said frame on which said lever is fulcruined,

mechanism on the .trarne for moving said pinl and shifting the fulcru .i of and means operable by said lever in sequence wif the movement of said tool away from the other tool for actuating said inechanisni.

14. A fastener setting machine comprising a frame, setting tools carried thereby and arranged to apply upsetting and cienci g pressure against the fasteners, a lever by which one of said tools is moved toward and way :oni the other tool to set a fastener at each operation, a pin carried by said fra-ine on which said lever is fulcruined, said pin rotatable and having an eccentric cylindrical surface engaged b o lever, mechanisrn on the frame for r pin and thereby shifting the fulcrurn or t e operable in sequence fastener setting operation of said actuating said mechanisrn. v

l5. A fastener setting machine comprising a frame, setting tools car ed thereby and arranged to apply upsetting and clenching pressure against the fasteners, a lever' by which one of said tools is moved toward and away from the other tool to seta fastener at each operation, a pin carried by said frame on which said lever is fulcruined, said pin being having an eccentric cylindrical surface engaged the lever, niechanisin on the frame for rotating said pin and thereby shifting the fulcruin of the lever, and rneans operable by lever in sequence with the fastener setting operation of said tools for actuating said mechanism, 'whereby a predetermined sequence of long and short fasteners is set.

16. A fastener setting rnachine comprising a frame, setting tools carried thereby `and arranged to apply upsetting and clenc ing pressure against the fasteners, a lever by v. one of said tools is nioved toward and from the other tool to set a fastener at each operation, a pin carried by said frame on which said lever is fulcruined, said pin being rotatable and having an eccentric cylindrical surface engaged by the lever and a lever, and means toothed cylindrical portion, a gear Wheel on said frame in mesh Iwith said toothed portion, and means operable in sequence with the fastener setting operation of said tools for imparting a rotary movement t irough said wheel to said pin.

17. A` fastener setting machine comprising a fraine, setting tools carried thereby and arranged to apply upsetting and clenching pressure against the fasteners, a lever by which one of said tools is moved toward and away from the other tool to set a fastener at each operation, a pin carried by said frame on which said lever is fulcrumed, said pin being rotatable and having an eccentric cylindrical surface engaged by the lever and a toothed cylindrical portion, a gear wheel on said frame in .inesh with said toothed portion, and means operable by said lever in sequence with the fastener setting operation of said tools for imparting a rotary movement through said wheel to said pin, wherebyv a predetermined sequence of long and short fasteners is set.

i8. A fastener setting machine comprising a frame, setting tools carried thereby and arranged to apply upsetting and clenohing pressure against the fasteners, a lever by which one of said tools is moved toward and away from the other tool to set a fastener at each operation, a'pin carried by said frame on `which said lever is fulcrumed,'

said pin being rotatable and having an eccentric cylindrical surface engaged by the lever and a toothed cylindrical portion, a gear wheel on said frame in rnesh with said toothed portion, and means, including a pawl,v carried by said lever, operable in sequence with the fastener setting operation of said tools for imparting a rotary movement through said wheel to said pin, whereby a predetermined sequence of long and short fasteners is set.

19. A fastener setting machine comprising a frarne, setting tools carried thereby and arranged to apply upsetting and cienching pressure against the fasteners, a lever is moved toward and away from the other tool to set a fastener at each operation, a pin carried by said frame on which said lever is ful'crumed, said pin being rotatable and having an eccentric cylindrical surface engaged by the lever and a toothed cylindrical portion, a gear Wheel on said frame in mesh with said toothed portion, and means, including a ratchet wheel, operable in sequence with the fastener setting operation of said tools for imparting a rotary movement through said wheel to said pin.

20. A fastener setting machine comprising a frame, setting tools carried to apply upsetting and clenching pressure against the fasteners, a lever by which one of said tools is rnoved toward and away from the other tool to set a fastener at each operation, a pin carried by said frame on which said lever is fulcrumed, said pin being rotatable and having an eccentric cylindricalV surface engaged by the lever and a toothed cylindrical portion, a gear wheel on said frame in mesh with said toothed portion,

and means, including a ratchet wheel fixed to said gear Wheel and a pawl carried by said lever, op erable in sequence with the fastener setting operation of said tools for imparting a rotary lnovement through said wheel to said pin, whereby by which one of said tools thereby and arranged 

